Drier



J. J UDELSON Sept. 1,1931;

DRIER Filed Feb. 9; 1928 INVENTOR l/miu r j BY ATTORNEY JL M Patented Sept. 1 1931 Mm STATES,

Parent 4 OFFICE F JULIUSJUDELSON, or NEW ORK; N', ASSIGNOR o 'JUDELSON DRYER CORPORA- mom, or MOUNDSVILLE, WEST VIRGINlA, A CORIEORATIQN or wns'r VIRGINIA imIER a 7 Application filed February 9, 1928. Serial No. 253,014. V

This invention, relatesto drier sf- Theinvention is directed amongother features toan improved construction of driercabinets whereby direct venting "of the evaporated moisture is had, and also,:the passage of burnt gases from a heater'in said cabinet to the outer air, is facilitated without the liability of any back draft; 1 a l An object of the-invention is to provide an improved drier cabinet, having means for the passage of air, for drying purposes, directly through the cabinet, ithout the admixture of any burnt gases, or other heating medium therewith.

A further object of the invention is the pro vision of a source of air in-flow to provide a medium for drying materials housed in the cabinet, andat the 'sametime, to supply the p in'myr .previously'named patents, the heater necessary air for combustion purposes. I

A still further ob] ect of the'invention isthe provision in con unct1on witli heat'mg means housed in the cabinetproducinga burnt gas to be exhausted from said cabinet, of meansmounted relative to said means to prevent the burnt gas from'being forcedfronithe' heater into the cabinet itself. s i;

Another object of the'invention 1s tolproa back draft preventer.

A still furtherobject'of' the invention is to provide a collapsible clothes drier having a heater mounted therein and means *fo'r'producing an air flow through said'heater, the

parts whereof may be readily disassembledfor shipping or quick assembly,-

v I Other objects of this invention will in part be obvious and in part hereinafter pointed- Fig. l onthe line 22.

vide, in connection with the heater for a drier, g

" 1 preventor 10, hereinafter more partlcularly.

Fig; 2 is a'transverse vertical section of 1 On the drawings, a driercabinet 10 preferably of the types shown and described in my Patent N 0;; 1,513,595, dated the 28th day of October, 1924, comprises vertical wall portions 12, 1a, 16, made up in the manner described inthe'above mentioned patent and mounted on the legs 18. The heater 20 is located insaid cabinetuin proximity to the drier rack-22, mounted forreciprocal move mentas set forth in said patent. CabinetlO is preferably made long and narrow, as shown in:Fig. 1, the heater 20 substantially filling the lower portion of saidcabinet andbeing spaced from the bottom Wall 24 by the legs 26. 'The heater 20 isprovided with afgas inlet and burner-,28,-asmore particularly described being made up in the manner therein describe'cL-and having mounted atone end thereof the outlet vent 30, upon which is mounted the extractor 32. Extending from said'extractor-is the stack pipe 3 1, received in analigned opening36 in the top 38 of the caband preferably extending partially; through opening 36 aroundsaid pipe isthe back draft described. Received in openings '42, 4 1 in thebottom wall 24: and top wall 38, respectively, are.baflie members 16. Openings42 and 14 are substantially in valignment and providemeans forthe passage of air into, through andoutof cabinetlO to facilitate the evaporation, ofmoisture from clothes, or

the drawings as supported in' the manner more particularly described in my Patent N o.v 1,632,904 issued June 21, 1927, for move ment through the front wall of the 'cabmet; The connectionsbetween heater-20, vent 30, extractor 32, stack pi e34, and back draft "m i met. 'Recelved over the end of stack pipe31 preventer are all separable, so that this entire apparatus may be knocked down for housing in a small compass, when ready for shipment, or may be set up easily during the assembling thereof. The back wall portion 12 has secured thereto a cross-bar 48 on which may be received the Z-pieces secured to the extractor 32 by means of which the latter is positively positioned relative to the heater 20. Said extractor, as described 'in my Patent No. 1,513,598, dated the 28th day of October, 1924, includes an inlet 41 open-.

ing into an enlarged chamber 43, which it'- self is open on all sides to the interior ofca-binet 10. Inlet 41 extends substantially into the reduced outlet 45 leading from chamber 43 so that an aspirating action will take place to withdraw gases from chamber 43 and thereby from cabinet 10. Stack pipe 34 slips over the outlet pipe 52 of said extractor, being received through the suitably shaped opening 36.

-The back draft preventer 40 is sheet metal, or the like, and comprises an inlet portion 54, formed with the same crosssection as the stack pipe 34 and tapering down to the reduced portion 56. Supported immediately over the opening of reduced portion 56 by means of straps 58 or the like, is, the body 60, formed by securing two cones of sheet metal 62, 64, with their bases coincident; Surrounding the reduced portion 56 and body 60, a cylinder 66 is erected and has an open end 68 at its lower portion communieating with the air outside of cabinet 10.

The upper end of said cylinder immediately above body gradually tapers to the out let'70, which likewise is opento the atmosphere outside of drier cabinet 10. Said cylinder and its associated parts are secured to the preventer 40 by means of straps 71 rivsized to body 60 and to said cylinder. 7

Baffles 46 are made up of sheet metal and comprise a conical portion 72, having secured thereto the bracket supports 73whic'h are formed with flat portions 74, riveted to conical portion 7 2. An arm 7 6 extends from said flatportion and terminates in a portion 78 parallel to portion 74 and to which is securedthe pin 80. Openings 82 provided in bottom wall 24 and top wall 38 around the openings 42, 44, are arranged in such manner as to receive the pins 80, to properly position said baffles relative to said openings. 7 By the construction above described, when heat is applied at'burners 28 to heater 20, air is drawn through the lower openings 42 to feed air to said burner through suitable openings in the burner and in the walls of thecombustion chamber 81 of heater 20;

also, as the warm air in contact with said heater rises air will be drawn throu-gh'saidopenings to displace said warm air. I

As the gases passing-through heater 20, are substantially at all times, higher in temperaformed of ture than the air, or vapor in cabinet 10, the draft at stack 34 will always be greater than that at any of the openings in drier 10. However, for points substantially spaced from stack pipe 34, the effect of extractor 32 will be substantially nullified, and unless some means for venting said chamber is provided, a heavy laden mixture of air and water vapor will be produced at these spaced points. This mixture will not pass from the chamber readil-y, until practically all the moisture in the vicinity of pipe 34 has been removed. Furthermore, some means must be provided whereby the vented air, and the like, is replaced; also some means is necessary to provide for airing the clothes during the drying operation. All these purposes are acco1nplished by the spaced openings 42, 44, which pass air into the cabinet adjacent the heater, then permit such .air to pass up through the cabinet in proximity to rack 22, and thereafter out the stack pipe 34, by way of the extractor 32, or out the openings 44.

WVhile at times, by a gust of air or the like, it might have been possible to build up a back pressure in stack pipe 34, so that burnt As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompaying drawings is to be interpreted as illustrative and. not in a limiting sense.

Having thus described .my invention, I claim as new and desire to secure by Letters Patent 1. A clothes drier comprising a casinghaving atop wall and .a bottom wall, a clothes rack, in said casing, a gas heater mounted within said casing adjacent said bottom wall and beneath said rack, conduit means adja cent one endof said casing and communicating with said heater for removing the burnt gases therefrom, said conduit means extending, to the top wall of said casing,'a back draft 'p reventer'mounted on said conduit,said bottom and top walls having openings there in above and below said rack respectively, said openings being located adjacent the end of said casing opposite said conduit means, and-an extractor'interposed in said conduit means having openings disposed within said Casing for removing air from said casing and inducing currents of air thru said opening in the bottom Wall around said heater.

2. A clothes drier comprising a casing having top and bottom Walls, means for supporting clothes in said casing, a heater mounted Within said casing adjacent said bottom Wall and beneath said supporting means, said top and bottom Walls having openings for the passage of air through said bottom openings upwardly through said casing and out through the openings in said top Wall, and an extractor Within said casing having an air opening communicating with said casing in termediate the top and bottom thereof for drawing air longitudinally therethrough.

3. A clothes drier comprising a casing having top and bottom walls, means for supporting clothes in said casing a heater mounted Within said casing adjacent said bottom Wall and beneath said supporting means, conduit means at one end of said casing interconnecting said heater with the top Wall of said casing, an extractor Within said casing interposed Within said conduit means, and a back draft preventer mounted on said conduit, said bottom and top Walls having openings therein located adjacent the end of said casing opposite said conduit means.

In testimony whereof I aflix my signature.

JULIUS JUDELSON. 

